Energy of Activation Multiple Choice Questions with Answers – PDF Download

MCQ 1: Use of catalyst in the reaction changes:

1. Entropy
2. Enthalpy
3. Internal energy
4. Activation energy

MCQ 2: It is a short-lived species and decomposes into products immediately:

1. Activated complex
2. Reactants
3. Effective molecules
4. All products

MCQ 3: The energy of activation of forwarding reaction is less than that of backward reaction in:

1. Endothermic reactions
2. Exothermic reactions
3. Isothermal reactions
4. All reactions

MCQ 4: Minimum amount of energy required to activate atoms, ions and molecules to undergo chemical reaction is called:

1. Kinetic energy
2. Potential energy
3. Activation energy
4. Rotational energy

MCQ 5: By increasing temperature, the rate of chemical reaction increases. It is due to:

1. Greater number of molecules
2. Greater number of collisions
3. Greater velocity of molecules
4. Lesser number of molecules